Picker-stick check for looms.



Urin Tas Patented .Tune 16, 1903.

THOMAS E. NORMAN, OF FALL RIVER, MASSACHUSETTS, ASSIGNOR OF ONE- I-IALFTO JOSEPH KIRKMAN, OF FALL RIVER, MASSACHUSETTS.

PICKER-STICK CHECK FOR LOOlVlS.

SPECIFICATION forming part of Letters Patent No. 731,120, dated June 16,1903.

Application tiled March 16,1903. Serial No. 148,025. (No model.)

To all whom, it may concern.-

Beit known that I, THOMAS E. NORMAN, a citizen of the United States,residing at Fall River, in the county of Bristol and State ofMassachusetts, have invented a newand useful Improvement in Picker-StickChecks for Looms, ot which the following is a specification.

This invention has reference to an improvementin looms,and moreparticularly to animprovement in picker-stick checks for looms.

The object of my invention is to prevent lnisplacement of the shuttle inthe shuttleboXes by the chattering or rebounding of the picker-sticksafter they have reached their outward limitin the shuttle-boxes underthe impulse of the door-springs.

My invention consists in the peculiar and novel construction -of apicker-stick check adapted to be secured to the back ot' theshuttlc-boxes, having an adjustable bell-crank lever weighted at thelower end and connect-V ing at the upper end with a flexible strap toengage with the picker-stick, the said strap having its fixed endsecured to the front of the shuttle-box, forming a loop to receive thepicker-stick, as will be more fully set forth hereinafter.

Figure 1 represents a back view of a loom,

showing my improved picker-stick checks se-4 cured to the backs of theshuttle-boxes and the position the checks would assume when engaged withand disengaged from the pickersticks. Fig. 2 is an enlarged view lookingat the back of a shuttle-boX,showin g the pickerstick check in itsengaged position, with the picker-stick at its outward limit in theshuttlc-box; and Fig. Sis a plan View of Fig. 2 looking at the underside of the shuttle-box, showing the bell-crank lever of the pickerstickcheck and its support on the shuttlebox in section.

In the drawings, a a are the shuttle-boxes of a loom. The picker-sticksa a are operated in the usual way by the picking-cones4 andpicker-straps to throw a' shuttle from the shuttle-boxes. Thefloor-springs a2 a2 are secured to the floor at one end and to the lowerends of the picker-sticks by the straps a3 co3, the tension of thefloor-springs returning the picker-sticks to their outward or normalposition after the throw ot' the shuttle by the picker-stick.

The picker-stick check b, as shown in Fig. 2, has the plate h secured tothe back of the shuttle-box by the screws b2 b2. Onthe plate b is thebuer b3, forming a stop, and the boss b4,having the shortoutwardly-extending stud h5, pivotally supporting the adjustablebellcrank lever c. The lever c is composed ofthe arm c', having theweighted end c2, with the weight c3 secured to it by the bolt 04,-thebearing c5 and the end c6 carrying the clampingbolt c7, and the arm cs,having the bearing c9 on the stud b5, with the sleeve 010 in the bearingc5 of the weighted arm c and the semicircular slot ou for theclamping-bolt c7. Secured to the upper end of the arm o8 at one end .bythe link d is the flexible strap d', made of any suitable materiahsuchas leather. This strap forms a loop to receive the pickerstick-and hasits iiXed end d2 riveted to the plate d3, secured to the front of theshuttlebox by screws or similar means.

As the blows from the outward movement of the picker-stick vary indifferent looms, I adjust the weight of the arm c' by adding moreweights or removing the weight c3 and by adjusting the arm c on the armc8 by loosening the clamping-bolt c7. The arm c' is now moved on itsbearing on the sleeve C10 into the position required to give more orless 'weight to the lever and secured in the adjusted position by theclamping-bolt.

In the operation of my improved pickerstick check the picker-stick inits outward movement under the impulse of the Hoorsprings strikes thestrap d', lifting the weighted arm o and bringing the arm o8 intocontact with the stop or buier b3. The weight -of the bell-crank lever cis adjusted to neutralize the blow of the picker-stick, retarding andstopping the picker-stick in its extreme outward position and preventingchattering or rebounding of the picker-stick on the shuttle.

Having thus described my `invention, I

claim as new and desire to secure by Letters IOO stick, means forpivotally securing the weighted lever to the back of a shuttle-box, theflexible strap,means for securing the xed end of the flexible strap tothe front ot' the shuttale-box, and means for adjusting the weights on1the lever, for the purpose as described.

2. Apicker-stick check consisting of a twopart lever pivotally securedtogether at its fulcrum, and connecting with a flexible strap to receivethe outward blow of a picker-stick, Weights on the lever, means forpivotally securing the lever to the back of the shuttlebox, a flexiblestrap, means for securing the fixed end of the strap to the front of theshuttie-box, and means for adjusting the tWo parts of the level-,for thepurpose as described.

3. Apicker-stickcheckconsistingofalever connecting with a flexible strapAto receive the outward blow of a picker-stick, au arm adjustably andpivotally secured to the lever at its fulcru nl, adjustable Weights onthe arm, means for pivotally securing the lever to the back of ashuttle-box, a iexible strap, means justiug the Weights on the arm andthe arm on the lever, 'for the purpose as described.

4. In a picker-stick check, the combination with a shuttle-boX andpicker-stick, of the plate b secured to the back of the shuttlebox andhaving the buffer b3 forming a stop, the boss b4 with the stud b5pivotally supporting the lever c, the lever c having the arm c' with theWeighted, end c2 and the Weight cs secured to it by the bolt c4, thebearing c5 and the end c6 carrying the clamping-bolt c7, and the arm o8having the bearing o9 with the sleeve 010 and the semicircular slot cfor the clamping-bolt, the flexible strapV d' connecting with the leverc by the link d and having the fixed end d2 riveted to the plate d3secured to the front of the shuttle-box, all for the purpose 4asdescribed.

In testimony whereof I have signed my name to this specitication in thepresence of two subscribing witnesses.

THOMAS E. NORMAN.

XVitnesses:

ADA E. HAGERTY, J. A. MILLER, Jr.

